作者:Stéphane Gérard、Marion Raoul、Janos Sapi
DOI:10.1002/ejoc.200500987
日期:2006.5
one-pot methodology for the synthesis of N-alkylated 2-substituted azetidin-3-ones based on a tandem nucleophilic substitution followed by intramolecular Michael reaction of primary amines with alkyl 5-bromo-4-oxopent-2-enoates, obtained in turn in three steps from levulinic acid. A mechanistic interpretation of these reactions and an attempted enantioselective approach are also described. (© Wiley-VCH
我们报告了一种一锅法合成 N-烷基化 2-取代氮杂环丁烷-3-ones,基于串联亲核取代,然后伯胺与烷基 5-bromo-4-oxopent-2-enoates 的分子内迈克尔反应,从乙酰丙酸分三步依次获得。还描述了这些反应的机械解释和尝试的对映选择性方法。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)